When the power is supplied, if the button is pressed and does not rotate to the right to release it, the operation button will not function due to the pressure loss protection function.

The new Chinese-style explosion-proof wire rope electric hoist meets JB/T 10222-2011 "Explosion-proof Electric Hoist", GB3836.1-2021 "Explosive Environment Part 1: General Requirements for Equipment" and GB3836.2-2021 "Explosive Environment Part 2: By Partition "Equipment protected by explosion enclosure "d"" national standard requirements.